Sonoma cygnus, Ferro & Carlton, 2010

Ferro, Michael L. & Carlton, Christopher E., 2010, Fifteen new species of Sonoma Casey from the eastern United States and a description of the male of Sonoma tolulae (LeConte) (Coleoptera: Staphylinidae: Pselaphinae), Insecta Mundi 2010 (137), pp. 1-44 : 5

2(1). Apical half of endophallus thick, strongly recurved to left; right paramere with acute apex ( Fig. 18 ); GA, NC .................................................................................... 1. S. cygnus new species

— Apical half of endophallus not recurved to left, either with large bulbous apex ( Fig. 20 ), left lateral subapical process ( Fig. 19 ), or wide apically expanded lamina ( Fig. 21 ); right paramere with acute apex or not ...................................................................................................................... 3

Figures

Figure 17-19. Sexual dimorphism and aedeagus images. 17a) Ventral aspect of abdomen, male (redrawn from Park 1942). 17b) Ventral aspect of abdomen, female. 18) Sonoma cygnus, aedeagus (dorsal view). 19) Sonoma parkorum, aedeagus (dorsal view). Scale lines equal 0.1 mm. Right side of Fig. 17-19 is anatomical left.

Figure 20-23. Aedeagus images. 20) Sonoma baylessae, aedeagus (dorsal view). 21) Sonoma brasstownensis, aedeagus (dorsal view). 22) Sonoma nicholsae, aedeagus (dorsal view). 23) Sonoma gilae, aedeagus (dorsal view). Scale lines equal 0.1 mm. Right side of figure is anatomical left.